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| Criterion |  Decision Making Delphi Method |  Operations Fault Tree Analysis |  Operations MORT Analysis |
|---|---|---|---|
Purposedifferent | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. |
Complexitysame | High | High | High |
Timedifferent | 1-4 Wochen | 2-6 h | Mehrere Tage bis Wochen |
Participantsdifferent | 6-30 Experten | 3-8 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | ForecastingExpertsDecisionStrategy | RiskRoot causeSafety | Root causeSafetySystemicIncident |
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